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Consolidated Statements of Operations - USD ($)
shares in Thousands
 12 Months Ended
Dec. 31, 2020
Dec. 31, 2019
Net revenue $ 82,346,000 $ 87,891,000
Cost of sales 70,781,000 78,008,000
Gross profit 11,565,000 9,883,000
Selling, general and administrative 11,351,000 13,680,000
Severance, relocation and other costs 124,000 509,000
Operating income (loss) 90,000 (4,306,000)
Interest expense, net 838,000 903,000
Other expense (income), net 544,000 (1,256,000)
(Loss) income before income taxes (1,292,000) (3,953,000)
Income tax benefit, net (2,960,000) (4,000)
Net income (loss) $ 1,668,000 $ (3,949,000)
Income (loss) per common share:    
Basic (in dollars per share) $ 0.08 $ (0.19)
Diluted (in dollars per share) 0.08 (0.19)
Cash dividends per common share (in dollars per share) $ 0 $ 0
Weighted average shares outstanding:    
Basic (in shares) 21,084 20,865
Diluted (in shares) 21,086 20,865